CN108528141A - A kind of refrigerator - Google Patents

Abstract

The present invention proposes a refrigerator, which includes a cabinet body and a running part arranged at the bottom of the cabinet body. There are at least two sets of the running parts, and each of the running parts includes a walking shaft and at least 2 parallel rotations arranged on the walking shaft. For the traveling wheels, an elastic buffer in a compressed state is arranged between two adjacent traveling wheels, and a buffer sealing structure is formed on the traveling wheels. The present invention solves the problems that the refrigerators in the prior art have poor buffering and shock absorption effects and cannot meet the demands of different road conditions.

Description

a freezer

technical field

The invention relates to an improvement of the structure of a refrigerator.

Background technique

The caster structure under the freezer in the prior art is mainly composed of a caster bracket, a caster shaft, a wheel hub made of PP and an outsourcing PU resin tire layer. With the expansion of the volume of the freezer in the commercial field, the overall size of the freezer box is increasing day by day, and the weight of the whole machine is rising. The structure and material of the casters are far from matching the needs of the current model development. The existing problems are mainly manifested in the following aspects :

First, due to the high load-bearing capacity of a single caster at the four corners of the box, the hub is severely deformed and cannot roll normally.

Since the material of the outer tire layer is PU resin, the contact between the outer tire layer and the ground is "hard-to-hard", which does not have the effect of buffering and shock absorption, so that the whole cabinet machine vibrates strongly during the dragging process, which not only produces a lot of noise, but also directly causes The welding joints of the refrigeration pipelines in the cabinet shake violently, which can easily lead to desoldering. Leakage of the refrigerant in the refrigeration system pipeline leads to the cooling failure of the whole refrigerator; in addition, the increased pressure on a single caster directly leads to an increase in the friction force applied to the outer PU resin during the movement of the box. Severe wear and tear, life is greatly reduced.

Contents of the invention

The invention provides a refrigerator, which solves the problem of poor buffering and shock absorption effect of the refrigerator in the prior art.

In order to achieve the purpose of solving the above-mentioned technical problems, the present invention adopts the proposed freezer and adopts the following technical solutions to achieve:

A refrigerator, comprising a cabinet body and a running part arranged at the bottom of the cabinet body, at least two sets of the running parts are provided, and each of the running parts includes a walking shaft and at least 2 running wheels that rotate in parallel and are arranged on the walking shaft , An elastic buffer in a compressed state is arranged between two adjacent road wheels, and a buffer sealing structure is formed on the road wheels.

The present invention also includes the following additional technical features:

Further, the traveling wheel includes a hub and an elastic tire layer sheathed on the hub.

Further, a plurality of buffer holes uniformly arranged along the circumference of the tire layer are provided on the tire layer, and each of the buffer holes is set through both ends of the tire layer and forms a cavity on the tire layer. The cavity is filled with gas, sealing gaskets are sealed at both ends of the cavity to form a sealing air bag, and a plurality of sealing air bags form the buffer sealing structure.

Further, the cross-sectional shape of the buffer hole is trapezoid, rhombus or irregular polygon.

Further, the sealed airbag and the carcass layer are formed at one time.

Further, the two ends of the walking shaft are provided with limiting parts for limiting the traveling wheels, and the limiting parts are annular protrusions or raised blocking pieces arranged on the walking shaft.

Further, the traveling shaft includes a first traveling shaft and a second traveling shaft, the first traveling shaft is sleeved and fixed to the second traveling shaft, and both of the first traveling shaft and the second traveling shaft are provided with There is the limiting part.

Further, the walking part is connected to the cabinet body through a connecting frame, and the connecting frame includes: a connecting cover and a cabinet connecting frame fixed to the connecting cover, and the connecting cover is fastened above the walking part , installation holes are provided on both sides of the connection cover, and the two ends of the walking shaft pass through the installation holes on the corresponding sides and are fixed to the connection cover.

Further, the connecting frame is formed with an accommodating cavity for accommodating the running parts, and a brake structure is provided above each running part, and the brake structure includes pedal pads, brake pads and levers, and the brake pads are inserted into Installed in the accommodating chamber, one end of which is fixed to the connecting frame, the pedal is arranged above the brake pad body and corresponding to the other end of the brake pad body, and the brake pad includes the brake pad body , a first brake pad arranged on the brake pad body and two second brake pads arranged on both sides of the brake pad body, the first brake pad is located between the second brake pads, and the lever is inserted in the On the connecting frame and against the bottom end of the brake pad body, a brake assembly is formed between the first brake pad and the second brake pad, and the brake assembly includes a brake assembly arranged on the outer surface of the first brake pad The raised edge on the upper part and the wedge-shaped protrusion arranged on the inner side of the second brake pad, the tip of the wedge-shaped protrusion faces downward.

Further, grooves opened along the width direction of the tire are provided on the outer surface of the tire layer.

The present invention has the following advantages and positive effects:

The present invention proposes a refrigerator, which includes a cabinet body and a running part arranged at the bottom of the cabinet body. There are at least two sets of the running parts, and each of the running parts includes a walking shaft and at least 2 parallel rotations arranged on the walking shaft. The walking wheel of the refrigerator in the present invention improves the caster structure, and the walking part is changed from the existing single wheel structure to a two-way or multi-directional walking wheel structure, and the load-bearing of the refrigerator is changed from a single wheel to a plurality of wheels, which reduces the The bearing capacity corresponding to each wheel avoids the problem of deformation and damage of the walking wheels, and improves the service life of the refrigerator; the refrigerator in the present invention is also provided with a buffer and shock absorbing mechanism. Buffer, through the elastic buffer added between the two road wheels, the road wheel can move a certain amount of displacement in the lateral direction under the deformation of the elastic buffer, and when it is subjected to lateral force, it can produce an appropriate amount of lateral displacement. Displacement plays a certain buffering and shock-absorbing effect in the lateral direction, and a buffering sealing structure is formed on the walking wheel; when subjected to vertical pressure, the effect of the buffering sealing structure can be used to make the traveling wheel move in the vertical direction. It has a certain amount of buffer displacement, and it has the effect of buffering and shock absorption in the vertical direction. The refrigerator in the present invention can not only have buffer and shock absorption in the horizontal direction but also have a buffer and shock absorption effect in the vertical direction, and can be used for different road conditions. need.

Description of drawings

Fig. 1 is the structural representation of freezer of the present invention;

Fig. 2 is a structural schematic diagram 1 of the walking part of the refrigerator of the present invention;

Fig. 3 is a structural schematic diagram II of the walking part of the refrigerator of the present invention;

Fig. 4 is a structural schematic diagram three of the walking part of the refrigerator of the present invention;

Fig. 5 is a structural schematic diagram 1 of the one-way wheel of the running part of the refrigerator of the present invention;

Fig. 6 is a second schematic structural view of the one-way wheels of the running part of the refrigerator of the present invention.

Detailed ways

The technical scheme of the present invention is described in further detail below in conjunction with accompanying drawing and specific embodiment, the present invention proposes a kind of embodiment of refrigerator, with reference to Fig. 1-shown in Fig. 6, comprise cabinet 1 and be arranged on cabinet 1 bottom Walking part 2, at least 2 groups of walking parts 2 are provided. In order to ensure the stability during the operation of the refrigerator, 4 groups of walking parts 2 are provided in this embodiment, which are respectively arranged at the four corners of the bottom of the refrigerator. Each walking part 2 in this embodiment includes a walking shaft 21 and at least 2 running wheels 22 that are arranged on the walking shaft 21 and rotate in parallel, and the number of walking wheels 22 can be determined according to the size of the refrigerator and the actual load. , the walking wheels 22 can be provided with 2 or more than 3 multiples, which are used to realize the weight bearing of the refrigerator, and the weight of the refrigerator can be shared by a plurality of walking wheels 22, so that the gravity on each walking wheel 22 It is halved or reduced to a fraction of the load capacity of the prior art, reducing the gravity on each road wheel 22, effectively avoiding the problem of deformation and failure of the road wheels 22 due to excessive load capacity, and improving the overall quality of the refrigerator. quality and service life.

An elastic buffer 3 in a compressed state is arranged between two adjacent traveling wheels 22. Preferably, the elastic buffer 3 is a spring, and an elastic buffer 3 is arranged between each adjacent two traveling wheels 22. , when subjected to lateral pressure, when the elastic buffer 3 is deformed, the two road wheels 22 can have a certain amount of lateral displacement. By adding the elastic buffer 3 between the two road wheels 22, it can withstand uneven road conditions When the force acts on the road wheels 22, the road wheels 22 will undergo a certain amount of displacement in the lateral direction under the deformation of the elastic buffer 3, and the impact of the buffer road surface passing through the road wheels 22 and the cabinet body 1 will play a certain role in the lateral direction. The cushioning and shock absorption effect avoids damage to the internal components of the cabinet body 1.

Simultaneously, a cushioning sealing structure 4 is also formed on the walking wheel 22, when the uneven force on the road surface gives the driving wheel 22 a vertical force, the buffering and sealing structure 4 can produce a buffering and shock absorbing effect, The traveling wheels 22 have a certain amount of buffer displacement in the vertical direction, and play the effect of buffering and shock absorption in the vertical direction.

Through the structure of the running part 2 of the refrigerator in the present invention, the running wheels 22 can not only realize buffering and shock absorption in the lateral direction but also in the vertical direction when walking, and can be used to meet the needs of different road conditions.

Further, the traveling wheel 22 in this embodiment includes a hub 221 and an elastic tire layer 222 sleeved on the hub 221 . Preferably, the wheel hub 221 is made of PP material, and the outer tire layer 222 is a rubber layer, which is wear-resistant and elastic. The outer tire layer 222 is elastic, and can produce a certain elastic buffer when encountering a potholed road surface, and has a certain buffer shock absorption Effect, can effectively avoid the damage to cabinet body 1 internal structure, simultaneously, because have elasticity when contacting with the ground, be not hard contact with the ground, can effectively avoid wearing and tearing, prolong the service life of whole walking wheel 22.

Further, on the said carcass layer 222, a plurality of buffer holes 41 uniformly arranged along the circumferential direction of the carcass layer 222 are provided, and the buffer holes 41 can ensure that the buffer holes 41 are deformed when encountering potholes and uneven road surfaces, so that It adapts to road conditions. Preferably, the cross-sectional shape of the buffer hole 41 in this embodiment is trapezoidal, rhombus or irregular polygonal. The shape of the cross-section of the buffer hole 41 should be opened into a shape with instability, such as a trapezoid in this embodiment, the trapezoid has instability and is prone to deformation after being stressed. Deformation occurs to play a certain buffering role. Of course, irregular hexagons, heptagons or octagons can also be selected, and details will not be repeated here. When the buffer hole 41 is set, it runs through the two ends of the tire layer 222. The buffer hole 41 runs through the tire layer 222, and a hollow cavity is formed in the tire layer 222 through the buffer hole 41, and gas is filled in the cavity. The sealing gasket forms a sealing air bag, and the plurality of buffer holes 41 and sealing gaskets form a plurality of sealing air bags correspondingly, and the plurality of sealing air bags jointly form the buffer sealing structure 4 .

Of course, the sealed airbag can be a one-time molding structure with the tire layer 222 . That is, during the forming process of the tire layer 222 of the one-way wheel 22, a plurality of sealed airbags 4 can be formed on the outer tire layer 222 at one time, and the cabinet body 1 can be dragged by the cushioning of the sealed airbags on the outer periphery of the tire layer 222. The shock absorption effect in the process is enhanced. Each sealed airbag is independent of each other, even if several sealed airbags are damaged, the overall shock absorption effect will not be affected.

In order to realize the limit of the travel wheel 22, a limit part 5 is provided on the travel shaft 21. The limit part 5 can be an annular protrusion or a raised stopper, snap ring, etc., which can be detachably assembled on the travel shaft 21. Can.

Preferably, in order to facilitate the assembly of the traveling wheels 22 assembled on the traveling shaft 21, the traveling shaft 21 of this embodiment adopts a setting method in which the first traveling shaft and the second traveling shaft are sleeved and fixed, and the first traveling shaft and the second walking shaft are all provided with a limiter 5 that limits the travel wheel 22, and the limiter 5 is an annular protrusion or a raised stop that is arranged on the first walking shaft and the second walking shaft piece. Of course, the first walking axis and the second walking axis in this embodiment can also directly choose a stepped axis structure.

When the road wheels 22 are installed, one or two road wheels 22 can be installed on the first road shaft, and the other road wheel 22 can be assembled on the second road shaft, and pass through the stopper 5 on each road shaft simultaneously. It is enough to limit the position of one of the end faces of the traveling wheels on it.

Further, the walking part 2 is connected to the cabinet 1 through a connecting frame 6, the connecting frame 6 includes: a connecting cover 61 and a cabinet connecting frame 62 fixed to the connecting cover 61, preferably, the cabinet is connected The frame 62 and the connection cover 61 are integrally formed parts, and screw holes are provided on the cabinet connection frame 62, and the connection cover 61 is fastened on the top of the walking part 2. Mounting holes 611 , the two ends of the traveling shaft 21 pass through the mounting holes 611 on the corresponding sides of the connecting cover 61 to achieve a fixed connection with the connecting cover 61 .

Further, in order to realize the braking of the traveling wheels 22, the connecting frame 6 is formed with an accommodating cavity for accommodating the running part 2, and a braking structure 7 is arranged above each running part 2, and the braking structure 7 includes Pedal pad 71, brake pad 72 and lever 73, described brake pad 72 comprises brake pad body 721, the first brake pad 722 that is arranged on the brake pad body 721 and is arranged on two sides of described brake pad body 721 The second brake pad 723, the brake pad 72 is inserted in the accommodating cavity, one end of which is fixed to the connecting frame 6, and the pedal pad 71 is arranged above the brake pad body 721 and connected to the brake pad body 721. The other end of the body 721 is located correspondingly. Preferably, the brake pad body 721 is an elastic piece with a curved curvature, which can elastically deform when pressed, and the first brake pad 722 is located between the two second brake pads 723. The lever 73 is inserted on the connecting frame 6 and abuts against the bottom end of the brake pad body 721, and a brake assembly 8 is formed between the first brake pad 722 and the second brake pad 723. The assembly 8 includes a raised edge 81 disposed on the outer side of the first brake pad 722 and a wedge-shaped protrusion 82 disposed on the inner side of the second brake pad 723 , the tip of the wedge-shaped protrusion 82 faces upward. When braking, press down the pedal piece 71, the force of the pedal piece 71 is transmitted to the brake pad body 721, and the brake pad body 721 elastically deforms with the lever 73 as the fulcrum through the principle of leverage, and moves downward to drive the first brake pad above it. Both the brake pads 722 and the second brake pads 723 move downward, and when the two second brake pads 723 move down, they will give the running wheels 22 a force through the wedge-shaped protrusions 82. Since there is an elastic member between the running wheels 22, the The two road wheels 22 can have a certain amount of displacement in the axial direction. When subjected to the pressure of the second brake pad 723, the road wheels 22 at the corresponding ends of the pressure will move to the inside. When the disc 722 is at the position, the sides of the road wheels 22 are clamped by the raised ribs 81 on the first brake disc 722 and the wedge-shaped protrusions 82 on the second brake disc 723, and the road wheels are clamped by both sides at the same time. The friction effect of 22 both sides sides realizes the braking to walking wheel 22.

Further, grooves opened along the width direction of the carcass layer 222 are provided on the outer surface of the carcass layer 222, so that it can be used to meet the requirements of different road conditions.

The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art can still understand the foregoing embodiments. Modifications are made to the technical solutions described, or equivalent replacements are made to some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions claimed in the present invention.

Claims (10)

1. a kind of refrigerator, including cabinet and the running part in bottom of cabinet bulk is set, the running part is at least arranged 2 groups, feature It is, each running part includes that walking axle and at least two are rotatably arranged on the traveling wheel in walking axle parallel, adjacent It is provided with the resilient snubber in compressive state between 2 traveling wheels, cushion seal structure is formed on the traveling wheel.

2. refrigerator according to claim 1, which is characterized in that the traveling wheel includes wheel hub and the bullet that is set on the hub The carcass ply of property.

3. refrigerator according to claim 2, which is characterized in that be provided in the carcass ply multiple along carcass ply circumferential direction The cushion hole being evenly arranged, each cushion hole run through the carcass ply both ends of the surface and are arranged and are formed in carcass ply Chamber is filled with gas in the cavity, and at the both ends of the cavity, sealing gasket seal forms pressure bladder, multiple blanket gas Capsule forms the cushion seal structure.

4. refrigerator according to claim 3, which is characterized in that the cross-sectional shape of the cushion hole be trapezoidal, diamond shape or Irregular polygon.

5. refrigerator according to claim 2, which is characterized in that it is one-pass molding that the pressure bladder, which is with the carcass ply, Part.

6. refrigerator according to claim 1, which is characterized in that being provided at both ends with of the walking axle limited traveling wheel Limiting section, the limiting section are the annular protrusion being arranged in the walking axle or raised catch.

7. refrigerator according to claim 6, which is characterized in that the walking axle includes the first walking axle and the second walking Axis, first walking axle are arranged fixation with second walking axle, are all provided in first walking axle and the second walking axle It is equipped with the limiting section.

8. refrigerator according to claim 1, which is characterized in that the running part is connected by a link and the cabinet It connects, the link includes：Connect cover and with the fixed cabinet link of connect cover, the connect cover be located in the running part Top, the both sides of the connect cover are provided with mounting hole, the walking axle both ends pass through the mounting hole of respective side with The connect cover is fixed.

9. refrigerator according to claim 8, which is characterized in that be formed with the accommodating of accommodating running part on the link Chamber, is both provided with brake structure above each running part, and the brake structure includes foot-operated sheet, brake block and lever, described Brake block is inserted into the accommodating cavity, and one end is fixed with link, and the foot-operated sheet is arranged on the brake block ontology It is correspondingly arranged just and with another end position of brake block ontology, the brake block includes brake block ontology, is arranged in brake block First brake piece on ontology and 2 the second brake blocks in brake block ontology both sides, first brake piece position are set Between the second brake block, the lever is inserted on the link and is resisted against the bottom end of the brake block ontology, in institute It states and is formed with brake assemblies between first brake piece and the second brake block, the brake assemblies include being arranged outside first brake piece Raised rib on side and the wedge-shaped protrusion portion being arranged on the second brake block medial surface, wedge-shaped protrusion portion tip is downward.

10. refrigerator according to claim 1, which is characterized in that be provided with along cover tire on the lateral surface of the carcass ply The groove that the width direction of layer opens up.